57260263 has 2 divisors, whose sum is σ = 57260264. Its totient is φ = 57260262.

The previous prime is 57260221. The next prime is 57260279. The reversal of 57260263 is 36206275.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57260263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57260963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28630131 + 28630132.

It is an arithmetic number, because the mean of its divisors is an integer number (28630132).

Almost surely, 2^57260263 is an apocalyptic number.

57260263 is a deficient number, since it is larger than the sum of its proper divisors (1).

57260263 is an equidigital number, since it uses as much as digits as its factorization.

57260263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 57260263 is about 7567.0511429486. The cubic root of 57260263 is about 385.4349679991.

The spelling of 57260263 in words is "fifty-seven million, two hundred sixty thousand, two hundred sixty-three".